Linus Yale Jr.

Linus Yale Jr. , (1821 - 1868), is a American inventor .

He improves the invention of his father Linus Yale Sr., the cylindrical lock with pins and deposits a patent for the first cylindrical lock equipped with a notched wrench, similar to those which one uses today.

Its patents

6 May 1851 Stalemate. #8,071 - Newport, New York
Oct. 19, 1852 Stalemate. #9,350 - Newport, New York
21 DEC 1852 Stalemate. #9,497 - Newport, New York
12 July 1853 Stalemate. #9,850 - Newport, New York
12 Jul 1853 Stalemate. #9,853 - Newport, New York
3 Jun 1856 Stalemate. #15,031 - Newport, New York
Oct. 19, 1858 Stalemate. #21,861 - Philadelphia, Pennsylvania
Nov. 9, 1858 Stalemate. #22,048 - Philadelphia, Pennsylvania
12 Jun 1860 Stalemate. #28710 - Philadelphia, Pennsylvania
29 Jan 1861 Stalemate. #31,278 - Philadelphia, Pennsylvania
14 May 1861 Stalemate. #32,331 - Philadelphia, Pennsylvania
27 Jun 1865 Stalemate. #48,475 - Shelburne Falls, Massachusetts
27 Jun 1865 Stalemate. #48,476 - Shelburne Falls, Massachusetts
6 Feb 1866 Stalemate. #52,484 - Shelburne Falls, Massachusetts
Nov. 19, 1867 Stalemate. #71,110 - Shelburne Falls, Massachusetts
7 Jan 1868 Stalemate. #73,152 - Cooperstown, New York
4 Feb 1868 Stalemate. #74,025 - Shelburne Falls, Massachusetts
15 Sep 1868 Stalemate. #82,192 - Shelburne Falls, Massachusetts
4 Jan 1870 Stalemate. #98,536 - Shelburne Falls, Massachusetts
19 Sep 1871 Stalemate. #119,212 - Shelburne Falls, Massachusetts
Oct. 24, 1871 Stalemate. #120,177 - Shelburne Falls, Massachusetts

Source: U.S. Obvious and Trademark Office

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